Magento: Auto-changing the “Stock Availability” from “Out of Stock” to “In Stock” (& vice-versa) on Quantity Change

Question

So I’ve been looking for a way to change the Stock Availability back to In Stock when the quantity field is greater than 0. The system already automatically changes the Stoc

Answer 1

Just create cron job with that code snippet:

public function setBackInStock()
{
    $collection = Mage::getResourceModel('cataloginventory/stock_item_collection');
    $outQty = Mage::getStoreConfig('cataloginventory/item/options_min_qty');
    $collection->addFieldToFilter('qty', array('gt' => $outQty));
    $collection->addFieldToFilter('is_in_stock', 0);

    foreach($collection as $item) {
        $item->setData('is_in_stock', 1);
    }
    $collection->save();
}

Small note, you can set cron job for every minute, because if there are no results job won't be consuming time/resources